ISSN:
1572-8943
Keywords:
cesium acetate
;
intercalation
;
kaolinite
;
mass spectrometry
;
potassium acetate
;
Raman microscopy
;
thermal analysis
;
urea
;
X-ray diffraction
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The thermal behaviour of ordered kaolinites from Hungary and Australia intercalated with potassium acetate, cesium acetate and urea has been investigated by simultaneous TG-DTG-DTA, TG-MS, Raman microscopy and XRD. Remarkable changes in the thermal decomposition pattern of the intercalates were obtained as a function of the nature of the intercalating re-agents. Replacing the potassium cation to cesium leads to a change in the OH environments resulting in a more complicated dehydroxylation pattern. The urea intercalates can be decomposed completely without dehydroxylating the mineral, although further treatments are necessary to restore the original d-spacing.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1010189324654
Permalink